Structural design and optimization of reflectors for space high-cadence observing telescope (SHOT)

The Space High-cadence Observing Telescope (SHOT) is an instrument that will operate between 1 THz and 3 THz, to obtain more information about the dynamic universe and realize a large sky survey. The prototype telescope with a 500 mm aperture is designed for technology tests. The surface accuracy is required to be better than 5 μm to ensure precise observations within its operation wavelengths. The structures of reflectors are designed through topology and multiple-objective size optimization to get the optimal shape and suitable materials. The gravity, thermal and dynamic performance structural design are analyzed and satisfy the requirements.